High-performance liquid chromatographic enantioseparation using chitin carbamate derivatives as chiral stationary phases.
J Chromatogr A
; 1021(1-2): 83-91, 2003 Dec 22.
Article
em En
| MEDLINE
| ID: mdl-14735977
ABSTRACT
Chitin carbamate derivatives including 4-substituted and 3,5-disubstituted phenylcarbamates, 1-phenylethylcarbamates, and cycloalkylcarbamates were synthesized and coated on macroporous silica gel to evaluate their chiral recognition abilities as chiral stationary phases (CSPs) for high-performance liquid chromatography (HPLC). Among the derivatives, the 3,5-dimethylphenyl, 4-chlorophenyl, and 4-trifluoromethylphenylcarbamates showed relatively high-chiral recognition abilities when a hexane-2-propanol mixture was used as the eluent. The CSPs based on the chitin 3,5-dimethylphenyl and 3,5-dichlorophenylcarbamates could be stably used in the presence of chloroform and ethyl acetate as a component of the eluents, and a few racemates were more sufficiently resolved by the addition of a small amount of chloroform in the mobile phase. Some racemates were more efficiently resolved under the reversed phase condition.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Carbamatos
/
Cromatografia Líquida de Alta Pressão
Idioma:
En
Ano de publicação:
2003
Tipo de documento:
Article